If it's not obvious, I think this is the kind of thing you should fill in the blanks when you go home.

如果不能一眼看明白,我觉得这就是,应该在课下查漏补缺的地方

耶鲁公开课 - 基础物理课程节选

Leave a line there and think about it and fill in the blanks later.

画几条线,仔细想一想,然后补上这个漏洞

耶鲁公开课 - 基础物理课程节选

I'm assuming you can fill in the blanks.

你们可以自己完成这些步骤

耶鲁公开课 - 基础物理课程节选